private void GetFileNames(TKFP.Net.FtpClient ftp , string filename)
{
    //ファイルとディレクトのクラスを作成します
    TKFP.IO.FileInfo file = new TKFP.IO.FileInfo(ftp, filename);
    TKFP.IO.DirectoryInfo directory = file.Directory;

    //通常の日付取得
    Console.WriteLine(file.CreationTime.ToString("yyyy/MM/dd HH:mm:ss"));
    Console.WriteLine(directory.CreationTime.ToString("yyyy/MM/dd HH:mm:ss"));


    //詳細な日付取得
    ftp.DateTimeDetails = true;
    Console.WriteLine(file.CreationTime.ToString("yyyy/MM/dd HH:mm:ss"));
    Console.WriteLine(directory.CreationTime.ToString("yyyy/MM/dd HH:mm:ss"));
}